Artículo
Enhanced magnetocaloric response in Cr/Mo containing Nanoperm-type amorphous alloys
Autor/es | Franco García, Victorino
Conde Amiano, Clara Francisca Conde Amiano, Alejandro Kiss, László Ferenc |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2007-02-01 |
Fecha de depósito | 2016-01-26 |
Publicado en |
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Resumen | The magnetocaloric effect of Fe76Cr8−xMoxCu1B15 (x =0,4) alloys is studied. Although the combined addition of Cr and Mo is more efficient in tuning the Curie temperature of the alloy, the Mo-free alloy presents a higher ... The magnetocaloric effect of Fe76Cr8−xMoxCu1B15 (x =0,4) alloys is studied. Although the combined addition of Cr and Mo is more efficient in tuning the Curie temperature of the alloy, the Mo-free alloy presents a higher magnetocaloric response. The refrigerant capacity (RC) for the Mo-containing alloy is comparable to that of Gd5Ge1.9Si2Fe0.1 (for a field of 50 kOe, RC = 273 J kg−1 for the Mo alloy vs 240 J kg−1 for the Gd-based one), with a larger temperature span of the optimal refrigeration cycle (250 K vs 90 K, respectively). The restriction of the temperature span to 90 K gives RC = 187 J kg−1 for the Mo alloy. A master curve behavior for the magnetic entropy change is also evidenced. |
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